Loom.



No. 655,262. Patented Aug. 7, I900. A. MORELL.

LOOM.

(Application filed. Feb. 19, 1900.)

(No Model.)

Stair-1.25525 ln f -k l NITED STATES PATENT Onrlcai ALFRED MORELL,OFMILLBURY, MASSAOHUSETTS, ASSIGNOR or ONE-HALF TO JOHN B. BRADY, orSAME PLACE.

LooM.

SPECIFICATION forming part of Letters Patent No. 655,262, dated August7, 1900.

Application filed February 19, 1900. stain N... 5,732. (No model.)

Ta a/U whom it may concerns Be it known that LALFRED' MoRELL, of

Figure 1 represents a side view of so much of the harness mechanism of aloom as is necessary to illustrate the application of my in ventionthereto; and Fig. 2 is a similar view of said harness mechanism, showingthevarious parts in different positions from those shown in Fig. 1 tomore fully illustrate the operation thereof.

The objects of my invention are to simplify the construction of themechanism interposed between the dobbyeveners and the jacks orharness-levers and pattern-cylinder of a power-loom, so as tonecessitate the use of only one dobby-ho'ok instead of two, asordinarily, also to economize in space, and to insure a positive actionof said jack-actuating mechanism without the use of any springswhatever. n

Said invention consists in combining with each jack or harness-lever,with each recipro- 'cating dobby-evener, and the pattern chaincylinderan eccentric adapted to engage with said jack or harness-lever; avertical swinging supporting-arm; a horizontal link connecting thebottom of said swinging arm with said eccentric; a long horizontal leverpivoted at one end to said swinging arm, its other end extending outbetween the reciprocating dobby-eveners and provided with shoulders orhooks, one upon the top and the other upon the bottom edge thereof,against which said dobby-eveners are adapt-ed to engage in theirhorizontal reciprocating movements; a small rocking lever or dogarranged about central under each dobby-hook and adapted to engagetherewith, and a long hooked rocking lever adapted to engage at one endwith said small rocking lever or dog and at its other endwith thedobby-hook, and with the under edge of which long rocking lever theusual pins on the pattern-cylinders goods to be woven.

are adapted to engage, as and for the purpose hereinaftermore fully setforth.

To enable others skilled in the art to which "my invention appertains tobetter understand the nature and purpose thereof, I will now proceed todescribe it more in detail.

In the drawings, A represents part of one of the jacks orharness-levers, which is fitted to rock on the usual transverse shaft Band Whose rocking movements are limited by the stationary cross-bar 0,against which the shoulders A A on the jack come in contact when saidjack is reciprocated back and forth in the operation of weaving, asusual.

D represents the pattern-cylinder, which is mounted on the transverseshaft E and pro vided with the usual radially-projecting pins D, thenumber of which, as will be understood, being governed by the pattern ofthe In this instance only one of said pins is shown.

The intermittently-reciprocating slides or what are commonly termeddobby-eveners F F are operated back and forth horizontally, as usual, bysuitable mechanism connecting the same with the driving mechanism of theloom. As said mechanism and also that for operating the pattern-cylinderD do not constitute a part of my invention it is deemed unnecessary toillustrate or describe the same in detail. In Fig. 1 of the drawings Ihave shown by dotted lines the dobby-eveners F F, each separatelyconnected by suitable adjustable bars or rods G with the ends of arock-lever H, centrally pivoted to a transverse shaft I, onedobby-evener being connected with one end of said rock-lever and theother with the other end thereof. The rock-lever is provided with acentral arm H, projecting at right angles therefrom, to the outer end ofwhich is pivoted a vertically-reciprocating connecting-rod J.

The foregoing-described parts, it will be understood, are all old, and Imake no'claim thereto, except in combination with my improvements, whichI will now describe. In describing said improvements it will also beunderstood thatthe mechanism for operating each jack is alike, andtherefore only one set of jack operating mechanism will be described,and as shown in the drawings.

jecting arm A of jack A and'adapted to engage with the edges of saidarms when said eccentric is turned, as hereinafter described.

The eccentric is pivoted near its top edge to the transverse shaft K,and at the side edge farthest from arm A is pivoted one end of a.

horizontally-arranged link M, whose opposite end is pivoted to avertical swinging arm N in turn pivoted at itsupper end to a stationarytransverse shaft '0. To the bottom-end of said vertical swinging arm Nis also pive. oted one end of a long horizontal lever P or what istermed the dobby-hook. This ex-" "tends out between the two(lobby-eveners and is provided with two shoulders or projections -P"Pone upon the top edge and the otherupon the bottom edge thereof, againstwhich the dobby-eveners F F are respectively adapted to engage. intheirhorizontal intermittent reciprocating movements when said dobbyhook P israised or allowed to drop down into the path of said dobby-eveners, ashereinaf jter described.

The operation of elevating the dobby-hoo the dobby-hook and lifts itshook P into the 'p'a'th-of the dobby-e'vener, as aforesaid. When theabove lifting pressure is removed, the doloby-hook P drops down by itsown Weight or force of gravity out of engagement with v thedobb'y-evener F and into the path of the other dobby-evener F. The innerend Q of the rock-lever Q is made hook-shaped, being curved upward andinward toward its pivot Q, and said hooked end fits in a recess formedin'the dog R at the innerside of its pivot R.

It is'therefore obvious that when the outer end of the rock-lever Q iselevated, as is shown in Fig. 1 the outer end R of dog R will alsobeelevated, and thereby causes the dobby-hook to be lifted into theposition shown in said Fig. 1. The outer end Q of the rock-lever iscurved upward and inward similar to its other end Q and is adapted toengage with the under edge of the dobby hook when the lever is forcedupward, as is also shown in Fig. 1. In order to impart to said lever Qthe desired rocking motion to keep'its end Q and the dog R in proper en-.gagement with the under side of the dobbyhook to hold said dobby-hookinits proper positions as it is reciprocated back and forth,

the bottom edge of said rock-lever is made curving or cam-shaped at Q sothat when the pin D"passes by in its rotation in con tact therewith saidmovements will be imparted thereto. a r r Having described the variousparts of my improvement in detaihlwill now give a brief description ofthe operation thereof in practice.

Assuming that the jack or harness-lever A occupies the position shown inFig. 1,.with its upper vertical arm swung to the right, which is theposition it occupies when the harness connected therewith is raised andalso assuming that all the various parts to which my improvements relateare in their proper positions for holding the dobby-hook in its elevatedposition,wit h the dobby-evenerF moved to its extreme right or outwardposition and the pin D. bearing nearly vertically against the under sideof the rock-lever Q, now as the pattern-cylinder D continues to turntoward the right the mechanism which operates the dobby eveners operatesalso to move the evener Ftoward the left and the evenerF' toward therigh-t, thereby moving thedobbyhook longitudinallytoward the left alsoand through the various connections described swinging the eccentricaround from the position shown in Fig. 1 to that shown inFig. 2, whichcauses the jack to be swung over alsoits upper arm A toward the leftand-its lower arm A toward the right and upwardthus so that thedobby-evener F may eng'agel with the shoulder P, is performed by the pinD on the pattern-cylinder D engaging withf the bottom edge of thehorizontal rock-lever? Q outside of its pivot Q and through thefoperation of said rock-lever operating thej dog R, which engages withthe under side of lowering the harness connected therewith.

Inpractice the parts are designed to be so constructed and arranged inrelation to each other that as the dobby-hook P is moved toward theleft, as above described, the rocklever Q and dog R will be allowed todrop down, thereby also permitting said dobby hook to descend, sothat-its hook P 'will come in1the path of the dobby-evener F inthereturn movementof the latter toward the right. Beingnow in positionfor saidreturn move ment the dobby-eveners, which have beenautoma'tically.stopped for a moment at the ends of theirlongitudinalmovements, areautomatically'operated, thereby drawing alltheparts toward the right and causing theeccen= tric to bear down upon thearm A of the jack, swings it back into its former position to raise theharness, and so on indefinitely by inter mittent automatic operations asthe dobbyeveners are reciprocated back and forth.

The rotation of the pattern-cylinder D is so timed with the movements ofthe dobb'y-eveners F F that the dobbyhook P will always be in positionfor said dobby-eveners to engage therewith in said reciprocatingintermittent automatic movements.

Having described my invention, what I claim therein as new, and desireto secure by Letters Patent, is i 1. In a power-loom, the jack orharness-le ver A, havingthe arm A; dobby-eveners F, F having horizontal,intermittent, recipro eating movements imparted thereto,-and thepattern-cylinder D, provided with transverse pins or projections D, incombination with theeccentric L located at the junction of the arms Aand A of jack A, and pivoted to I transverse shaft K; link M pivotedatone end to said eccentric and at its other end to the lower end of aswinging arm N; said swinging arm, pivoted to shaft 0; the (lobbyhook P,pivoted at its inner end to the lower end of said swinging arm and whoseouter end extends between the dobbyeveners, and with which saiddobby-eveners are adapted to engage in their reciprocating movements;the

ciprocat-ing dobby-hook P, having a projection adapted to engage withthe dobby-evener F and with another projection adapted to engage withthe dobby-evener F, and said dobby-eveners, each adapted to havereciprocating movements imparted thereto, in combi nation withrock-lever Q, pivoted to shaft Q and provided with the hooked ends Q Qthe end Q being adapted to engage with the dog R, and the end Q with thedobby-hook P; said dog R pivoted to shaft R and also adapted to engagewith said dobby-hook P, and with the pattern-cylinder D and its pin D,substantially as and for the purpose set forth.

7 V ALFRED MORELL. V Vitnesses:

A. A. BARKER, W. B. NOURSE.

